G-CoCr28 Cobalt vs. EN 2.4879 Cast Nickel
G-CoCr28 cobalt belongs to the cobalt alloys classification, while EN 2.4879 cast nickel belongs to the nickel alloys. They have 48% of their average alloy composition in common.
For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is EN 2.4879 cast nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 200 |
| Elongation at Break, % | 6.7 | |
| 3.4 |
| Fatigue Strength, MPa | 130 | |
| 110 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 83 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 560 | |
| 490 |
| Tensile Strength: Yield (Proof), MPa | 260 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 1200 | |
| 1150 |
| Melting Completion (Liquidus), °C | 1330 | |
| 1450 |
| Melting Onset (Solidus), °C | 1270 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Conductivity, W/m-K | 8.5 | |
| 11 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 100 | |
| 55 |
| Density, g/cm3 | 8.1 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 6.2 | |
| 8.3 |
| Embodied Energy, MJ/kg | 84 | |
| 120 |
| Embodied Water, L/kg | 440 | |
| 270 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 | |
| 14 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 | |
| 180 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 19 | |
| 16 |
| Strength to Weight: Bending, points | 19 | |
| 16 |
| Thermal Diffusivity, mm2/s | 2.2 | |
| 2.8 |
| Thermal Shock Resistance, points | 14 | |
| 13 |
Alloy Composition
| Carbon (C), % | 0.050 to 0.25 | |
| 0.35 to 0.55 |
| Chromium (Cr), % | 27 to 30 | |
| 27 to 30 |
| Cobalt (Co), % | 48 to 52 | |
| 0 |
| Iron (Fe), % | 9.7 to 24.5 | |
| 9.4 to 20.7 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 1.5 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 to 4.0 | |
| 47 to 50 |
| Niobium (Nb), % | 0 to 0.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.5 to 1.5 | |
| 1.0 to 2.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 4.0 to 6.0 |